Side Loading Kraft Double Wall Corrugated Boxes are excellent for flat or narrow products. Designed with full overlap (FOL) flaps which provide extra protection and stacking strength. Cartons open along ends to allow for easy insertion of flat products. Sold in bundle quantities. Boxes ship flat to save on storage space. Manufactured from 275#/ECT-44 kraft corrugated. Inside dimensions are 54 x 8 x 28".